Baelen (; ) is a municipality of Wallonia located in the province of Liège, Belgium.
On January 1, 2006, Baelen had a total population of 4,060. The total area is 85.73 km<sup>2</sup> which gives a population density of 47.36 inhabitants per km<sup>2</sup>.
The municipality consists of the following districts: Baelen and Membach.
Notable people
Born in Baelen:
- (1904–1944), priest and member of the Belgian Resistance during World War II
Residing in Baelen:
- Sunday Oliseh, a former Nigerian footballer and coach
- Marc Lacroix, biochemist and breast cancer researcher
See also
- List of protected heritage sites in Baelen